feat(i18n): add eloqnt lint, and fix what it found - #9106

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: thollander/actions-comment-pull-request@e2c37e53a7d2227b61585343765f73a9ca57eda9. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/